With the SR5™, AAC took the best selling M4-2000 5.56mm suppressor to the next level. Based on feedback from users who routinely go in harm’s way, AAC designers set about refining the all-Inconel® baffle core to minimize back pressure. Minimizing back pressure renders the suppressor transparent to the user and the host weapon, resulting in a number of benefits. Lower back pressure means users are subjected to less exposure to gas directed through the ejection port and charging handle recess. Lower back pressure reduces instances of parts breakage by minimizing the increase in velocity of the bolt and bolt carrier. The SR5™ uses the new 90 tooth Ratchet Taper Mount™ fast-attach system that enables users to achieve a rock-solid interface between the BLACKOUT® muzzle device and suppressor. The light-weight design of the SR5™ has a minimal impact on the balance and handling of the host weapon, and is equally at home on an 8” or 20” barrel.